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<?php declare(strict_types=1); |
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namespace CarstenWindler\Config; |
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use CarstenWindler\Config\Exception\ConfigErrorException; |
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use CarstenWindler\Config\Exception\ConfigKeyNotSetException; |
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class Config implements ConfigInterface |
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{ |
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private $config = []; |
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private $configPath; |
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private $strictMode = false; |
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public function setConfigPath(string $configPath): Config |
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{ |
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$this->configPath = $configPath; |
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return $this; |
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} |
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/** |
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* Set Config into strict mode, which means: if config keys are NOT set, Config will not |
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* return the default value, but throw an exception. |
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* |
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* You should not activate this in production, but use it in local dev and for CI to |
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* identify setup problems. |
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* |
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* @return Config |
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*/ |
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public function useStrictMode(): Config |
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{ |
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$this->strictMode = true; |
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return $this; |
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} |
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private function load(string $file): array |
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{ |
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if (!empty($this->configPath)) { |
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$file = $this->configPath . '/' . $file; |
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} |
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if (!file_exists($file)) { |
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throw new ConfigErrorException('Config ' . $file . ' not found'); |
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} |
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$configArray = include($file); |
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if (!is_array($configArray)) { |
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throw new ConfigErrorException('Config ' . $file . ' contains no array'); |
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} |
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return $configArray; |
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} |
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public function addConfigFile(string $file): Config |
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{ |
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$this->addConfigArray($this->load($file)); |
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return $this; |
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} |
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public function set(string $key, $value): Config |
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{ |
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$loc = &$this->config; |
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foreach (explode('.', $key) as $step) { |
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$loc = &$loc[$step]; |
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} |
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$loc = $value; |
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return $this; |
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} |
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public function addConfigArray(array $config): Config |
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{ |
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$this->config = $this->arrayMergeRecursiveDistinct($this->config, $config); |
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return $this; |
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} |
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public function get(string $key, $default = null) |
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{ |
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$loc = &$this->config; |
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foreach (explode('.', $key) as $step) { |
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if (array_key_exists($step, $loc)) { |
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$loc = &$loc[$step]; |
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continue; |
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} |
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if ($this->strictMode) { |
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throw new ConfigKeyNotSetException('Config key ' . $key . ' not set'); |
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} |
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return $default; |
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} |
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return $loc; |
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} |
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public function has(string $key): bool |
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{ |
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$loc = &$this->config; |
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foreach (explode('.', $key) as $step) { |
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if (!array_key_exists($step, $loc)) { |
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return false; |
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} |
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$loc = &$loc[$step]; |
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} |
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return true; |
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} |
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public function toArray(): array |
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{ |
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return $this->config; |
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} |
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public function clear(): Config |
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{ |
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$this->config = []; |
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return $this; |
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} |
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private function arrayMergeRecursiveDistinct(array &$array1, array &$array2): array |
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{ |
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$merged = $array1; |
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foreach ($array2 as $key => &$value) { |
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if (is_array($value) && isset($merged[$key]) && is_array($merged[$key])) { |
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$merged [$key] = $this->arrayMergeRecursiveDistinct($merged[$key], $value); |
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continue; |
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} |
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$merged[$key] = $value; |
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} |
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return $merged; |
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} |
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} |
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carstenwindler /
config
